Admiralty Islands, group of 40 volcanic islands, c.800 sq mi (2,070 sq km), SW Pacific, in the Bismarck Archipelago Bismarck Archipelago, volcanic island group, 19,200 sq mi (49,730 sq km), SW Pacific, a part of Papua New Guinea. The group includes New Britain (the largest island), New Ireland , the Admiralty Islands , the Mussau Islands, New Hanover , the Vitu Islands , and the
..... Click the link for more information. and part of Papua New Guinea. Lorengau, the chief port and administrative center of the group, is on Manus, the largest island. Copra, pearls, and marine shells are the principal products. Discovered by the Dutch navigator Willem Schouten Schouten, Willem Cornelis (vĭl`əm kôrnā`lĭs skhou`tən), 1567?–1625, Dutch navigator.
..... Click the link for more information. in 1616, the group became part of German New Guinea in 1884 and an Australian League of Nations mandate in 1920.

Admiralty Islands

Island group, Papua New Guinea. An extension of the Bismarck Archipelago comprising about 40 islands, the Admiralty Islands lie about 190 mi (300 km) north of the mainland of Papua New Guinea in the South Pacific Ocean. Most of the land area of the islands is contained in Manus Island, which is the site of Lorengau, the islands' principal settlement. First sighted by the Dutch explorer Willem Schouten in 1616, it was named by the British captain Philip Carteret in 1767. Subsequently ruled by the Germans, Australians, and Japanese, the islands were made part of the UN Trust Territory of New Guinea in 1946. When Papua New Guinea attained independence in 1975, the islands became part of that country.